Skip to main content
. 2013 Oct 15;77(3):309–316. doi: 10.1007/s10337-013-2584-6

Fig. 3.

Fig. 3

Identification of the isomers of PDCH from the individual structural isomer and mixture of PDCH liquid standards on a Al2O3-PLOT-S column; b Carbograph PLOT column. The average ratio of the integration area of two main peaks in every chromatogram is given in 13 with repeat injection and the small unmarked peaks in the chromatograms are some impurities in each individual PDCH